Carbureter.



No. 639,965 Patenfed m. 26, I899.

' J. E. ooze.

GARBURETEB.

{Application filed Mar. 2 1899.)

(No Model.)

1n: NOflRIS m ns 00.. moYo-u'ma. WASHINGTON o c NITED STATES PATENT Fr es.

JOSEPH F. DOZE, OF HUMESTON, IOWA, ASSIGNOR TO LORA P. DOZE, OF SAME PLACE.

CARBURETER.

SPECIFICATION forming part of Letters Patent No. 639,965, dated December 26, 1899.

Application filed March 29, 1899.

To all whom it may concern.-

Be it known that I, JOSEPH E. Dozn, a citizen of the United States, residing at Humeston, in the county of Wayne and State of Iowa, have invented certain new and useful Improvements in Gasolene- Gas Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in gasolene-gas machines,and more particularly to a mixer and regulator for that class of machines in which the gasolene is contained in a carbureter stationed outside of the building and a current of air is forced out through a pipe and through the carbureter and returned through the gas-main or supply-pipe and riser to be consumed for domestic lighting, heating, or cooking; and the objects are to simplify and improve the construction and efticiency of the machine and obtain a clear smokeless light by diluting the gas with air by means of a pipe leading direct from the air-pump into the gas-riser, to regulate the pressure of the gas, and to automatically control and regulate the amount of air admitted to the riser, so that any number of burners may be used without regard to the gas-pressu re.

To these ends the inventions consists in the construction, combination, and arrangement of the several parts, as will be hereinafter more fully described,and particularly pointed out in the appended claims.

In the accompanying drawings the same reference characters indicate the same parts of the machine.

Figure 1 is a side elevation of my improved gasolene-gas machine. Fig. 2 is a longitudinal section of the three-way cock. Fig. 3 is a detail view of the regulating-screw. Fig. 4 is an elevation on the line X X, looking in the direction of the arrow.

In the drawings, 1 denotes the air-pump, the outlet-pipe 2 of whichconnects with the threaded socket 3 on the valve-casing 4, and from the oppositely-alined socket 5 a pipe v6 extends to the carbureter '7, and from the carbureter an outlet-pipe or riser 8 extends to the mixing-chamber 9. The valve-casing 4 Serial No. 710,923. (No model.)

is also provided with a third socket 10, from which a branch pipe 12 communicates with the riser 8 between the carbureter and the gas-mixer.

13 denotes a vertical branch pipe communicating with the air-pipe 6 and opening into the pressure-tank 14, which is filled with water or other suitable liquid up to the dotted line 15 to form an air or gas seal for the drum 16, which has a vertical movement in said tank. The top of this drum is provided with a fixed guide-rod 17, which has a sliding engagement with the eye 18, formed on the outer end of the curved arm 19, formed integral with the valve-stem 20, adj ustably secured in the projecting end of the tubular cylindrical valve 21 by means of the set-screw 22. This valve has a bearing in the sleeve 23, which is fixed in the casing 4, and it is provided with the rectangular ports 24, 25, and 26, which are alinedwith the pipes 2, 6, and 12, respectively, and normally with correspondingly-formed ports 27, .28, and 29 in the cylindrical valve 21. The outer end of the sleeve 23 is provided with a closed head 30 to receive the adjusting-screw 31, the inner end of which engages the cut-off valve 32, the inner end of which carries a packing-plug 33, and is adapted to regulate the openings in the ports 26 and 29 or to close them entirely, as occasion requires.

In the ordinary gasolene-gas plant when the carbureter is freshly filled with gasolene the first portion of the gas generated is highly charged with the hydrocarbon element and is consequently rich and smoky, due to the excess of carbon; but this condition gradually improves as the gasolene which is in the carburetor is used up until a gas is finally obtained (when the gasoleneis nearly exhausted) which gives a clear light, entirely free from smoke, due to the proper proportions of air and gasolene being mixed, and there being no excess of carbon the gas is entirely consumed at the burner. I attain this object at all times by diluting the mixed gas and air (after leaving the carbureter) with an additional quantity of atmospheric air through the medium of the branch pipe 12. A part of the air from the pump which passes into the valve-casing 4 through the pipe 2 passes through the pipe through the medium of the curved arm 19 will close the valve 21 and prevent the further admission of air to the carbureter or riser,and if the gas be lighted at one burner the drum will fall to a point which will open the valve 21 just suflicient to compensate for the gas consumed, and the same holds good if two or more burners be used up to the full capacity of the machine. It is advantageous to gradually close the port 26 leading to the auxiliary air-pipe 12 as the gasolene becomes less volatile until it is finally closed and all of the air from the pump caused to pass through the carbureter.

In order to ascertain the degree to which the auxiliary air-port 26 is opened, I provide the cut-01f valve 32 with a pointer 34, which projects through a slot 35, formed in the sleeve 23, and which traverses a scale formed on the outside of said sleeve, the scale preferably conforming to the dimensions or length of the port.

It will of course be understood that various changes in the form,proportion,and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus fully described the invention,

what is claimed, and desired to be secured by Letters Patent of the United States, is-

1. The combination with the air-pump, carbureter and mixing-chamber located in the carbureter outlet-pipe, of the air-pipe 2 6 connecting the carbureter and pump, an airpressure-regulating device provided with the water-sealed drum 16, the valve 4 connecting the air-pipe 2 6, the pipe 12 connecting said valve and the carbureter inlet pipe, and means for operating said valve through the medium of said drum, substantially as and for the purpose set forth.

2. In a gasolene-gas machine, the combination with the valve-casing 4, provided with the socket 3 to receive a pipe communicating with the source of air-supply, the socket 5 to receive a pipe communicating with the carbureter, and the socket to receive a pipe communicating with the service-pipe leading from the carbureter, of the cylindrical valve 21 formed with the ports 27, 28 and 29, the sleeve 23 formed with the corresponding ports 24, 25 and 26 and the cut-0E valve 32 adjustably secured in one end of said sleeve, the pressure-regulator communicating with the carbureter inlet-pipe, and operatively connected to said plug-cock, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

.T. E. DOZE.

Witnesses:

V, K. VVoRoEs'rER, F. W. ITAsBRoUoK. 

